Unit7 SectionA GrammarFocus～4c 教学课件2023-2024学年人教版九年级英语全册

Unit 7 Teenagers should be allowed to choose their own clothes. Section A Grammar Focus ~ 4c 九年级全一册 人教版 Learning Goals Warming Up Grammar Summary Exercises 1 1 2 3 4 5 通过本课的学习，学生能够： ①掌握含有情态动词的被动语态的结构，主动形式表被动意义的情况以及不能使用被动语态的情况。 ②能在具体生活情境中运用被动语态。 Learning Goals Let’s Review 在英语中，动词有两种语态，即____________________。被动语态的基本结构是“______________________________”，其中助动词be有_______________ 的变化，其变化规则与be作为连系动完全一样。 前面我们已经学过了一般现在时和一般过去时的被动语态。 主动语态和被动语态 助动词 be + 及物动词的过去分词 人称、数和时态 Warming Up 主动语态变为被动语态的方法 I am often asked the questions by my pupils. My pupils often ask me questions. 宾变主，谓被动，主语放在by后 主动语态 被动语态 被动语态的各种句式结构 肯定式 主语+am/is/are/was/were+过去分词（ + by…) 否定式 主语+am/is/are/was/were + not +过去分词 (+by…) 疑问式 Am/Is/Are/Was/Were+主语+过去分词(+ by …)? 特殊疑问词+ am/is/are/was/were+主语+过去分词（+ by ...)? 时态 谓语动词形式 一般现在时 am/is/are+ done 一般过去时 was/were + done 一般将来时 现在进行时 过去进行时 现在完成时 过去完成时 过去将来时 will be done/ be (am,is,are) going to+ be done am/is/are+ being done was/were+ being done have/has+ been done had + been done would be done/be(was,were)going to +be done I don’t think sixteen­year­olds should be allowed to drive. Do you think teenagers should be encouraged to make their own decisions? Teenagers should not be allowed to have part­time jobs. Do you think we may be allowed to take photos if we don’t use a flash? Presentation 观察书上表格，总结含有情态动词的被动语态的结构 含有情态动词的被动语态 句式 结构 示例 肯定句 主语+情态动词+be+及物动词的过去分词(+by…) Teenagers should be allowed to make their own decisions. 否定句 主语+情态动词+not+be+及物动词的过去分词(+by…) The word can’t be used in this sentence. 一般疑问句 情态动词+主语+be+及物动词的过去分词(+by…)? Must the homework be finished today? 特殊疑问句 特殊疑问词+被动语态的一般疑问句？ Who should be asked to do the job? The work must be done right now. →Must the work be done right now? ---Yes, it must./ No, it needn’t. Where can the book be found? →The book can’t be found in the library. 这项工作必须立刻去做。 这项工作必须立刻去做吗？ 这本书在什么地方能被找到呢？ 这本书在图书馆找不到。 否定回答不用mustn’t，mustn’t表禁止 观察下列句子，说出主语和谓语动词的主被动关系。Tea tastes delicious.